programs/uninstaller/main.c

   1 /*
   2  * Uninstaller
   3  *
   4  * Copyright 2000 Andreas Mohr
   5  * Copyright 2004 Hannu Valtonen
   6  * Copyright 2005 Jonathan Ernst
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  */
  23
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <windows.h>
  27 #include <shlwapi.h>
  28 #include "resource.h"
  29 #include "regstr.h"
  30 #include "wine/debug.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(uninstaller);
  33
  34 typedef struct {
  35     WCHAR *key;
  36     WCHAR *descr;
  37     WCHAR *command;
  38     int active;
  39 } uninst_entry;
  40 static uninst_entry *entries = NULL;
  41 static unsigned int numentries = 0;
  42 static int list_need_update = 1;
  43 static int oldsel = -1;
  44 static WCHAR *sFilter;
  45 static WCHAR sAppName[MAX_STRING_LEN];
  46 static WCHAR sAboutTitle[MAX_STRING_LEN];
  47 static WCHAR sAbout[MAX_STRING_LEN];
  48 static WCHAR sRegistryKeyNotAvailable[MAX_STRING_LEN];
  49 static WCHAR sUninstallFailed[MAX_STRING_LEN];
  50
  51 static int FetchUninstallInformation(void);
  52 static void UninstallProgram(void);
  53 static void UpdateList(HWND hList);
  54 static int cmp_by_name(const void *a, const void *b);
  55 static INT_PTR CALLBACK DlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
  56
  57
  58 static const WCHAR BackSlashW[] = { '\\', 0 };
  59 static const WCHAR DisplayNameW[] = {'D','i','s','p','l','a','y','N','a','m','e',0};
  60 static const WCHAR PathUninstallW[] = {
  61         'S','o','f','t','w','a','r','e','\\',
  62         'M','i','c','r','o','s','o','f','t','\\',
  63         'W','i','n','d','o','w','s','\\',
  64         'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  65         'U','n','i','n','s','t','a','l','l',0 };
  66 static const WCHAR UninstallCommandlineW[] = {'U','n','i','n','s','t','a','l','l','S','t','r','i','n','g',0};
  67
  68
  69 /**
  70  * Used to output program list when used with --list
  71  */
  72 static void ListUninstallPrograms(void)
  73 {
  74     unsigned int i;
  75     int lenDescr, lenKey;
  76     char *descr;
  77     char *key;
  78
  79     if (! FetchUninstallInformation())
  80         return;
  81
  82     for (i=0; i < numentries; i++)
  83     {
  84         lenDescr = WideCharToMultiByte(CP_UNIXCP, 0, entries[i].descr, -1, NULL, 0, NULL, NULL);
  85         lenKey = WideCharToMultiByte(CP_UNIXCP, 0, entries[i].key, -1, NULL, 0, NULL, NULL);
  86         descr = HeapAlloc(GetProcessHeap(), 0, lenDescr);
  87         key = HeapAlloc(GetProcessHeap(), 0, lenKey);
  88         WideCharToMultiByte(CP_UNIXCP, 0, entries[i].descr, -1, descr, lenDescr, NULL, NULL);
  89         WideCharToMultiByte(CP_UNIXCP, 0, entries[i].key, -1, key, lenKey, NULL, NULL);
  90         printf("%s|||%s\n", key, descr);
  91         HeapFree(GetProcessHeap(), 0, descr);
  92         HeapFree(GetProcessHeap(), 0, key);
  93     }
  94 }
  95
  96
  97 static void RemoveSpecificProgram(WCHAR *nameW)
  98 {
  99     unsigned int i;
 100     int lenName;
 101     char *name;
 102
 103     if (! FetchUninstallInformation())
 104         return;
 105
 106     for (i=0; i < numentries; i++)
 107     {
 108         if (lstrcmpW(entries[i].key, nameW) == 0)
 109         {
 110             entries[i].active++;
 111             break;
 112         }
 113     }
 114
 115     if (i < numentries)
 116         UninstallProgram();
 117     else
 118     {
 119         lenName = WideCharToMultiByte(CP_UNIXCP, 0, nameW, -1, NULL, 0, NULL, NULL);
 120         name = HeapAlloc(GetProcessHeap(), 0, lenName);
 121         WideCharToMultiByte(CP_UNIXCP, 0, nameW, -1, name, lenName, NULL, NULL);
 122         fprintf(stderr, "Error: could not match application [%s]\n", name);
 123         HeapFree(GetProcessHeap(), 0, name);
 124     }
 125 }
 126
 127
 128 int wmain(int argc, WCHAR *argv[])
 129 {
 130     LPCWSTR token = NULL;
 131     HINSTANCE hInst = GetModuleHandleW(0);
 132     static const WCHAR listW[] = { '-','-','l','i','s','t',0 };
 133     static const WCHAR removeW[] = { '-','-','r','e','m','o','v','e',0 };
 134     int i = 1;
 135
 136     while( i<argc )
 137     {
 138         token = argv[i++];
 139
 140         /* Handle requests just to list the applications */
 141         if( !lstrcmpW( token, listW ) )
 142         {
 143             ListUninstallPrograms();
 144             return 0;
 145         }
 146         else if( !lstrcmpW( token, removeW ) )
 147         {
 148             if( i >= argc )
 149             {
 150                 WINE_ERR( "The remove option requires a parameter.\n");
 151                 return 1;
 152             }
 153
 154             RemoveSpecificProgram( argv[i++] );
 155             return 0;
 156         }
 157         else
 158         {
 159             WINE_ERR( "unknown option %s\n",wine_dbgstr_w(token));
 160             return 1;
 161         }
 162     }
 163
 164     /* Load MessageBox's strings */
 165     LoadStringW(hInst, IDS_APPNAME, sAppName, sizeof(sAppName)/sizeof(WCHAR));
 166     LoadStringW(hInst, IDS_ABOUTTITLE, sAboutTitle, sizeof(sAboutTitle)/sizeof(WCHAR));
 167     LoadStringW(hInst, IDS_ABOUT, sAbout, sizeof(sAbout)/sizeof(WCHAR));
 168     LoadStringW(hInst, IDS_REGISTRYKEYNOTAVAILABLE, sRegistryKeyNotAvailable, sizeof(sRegistryKeyNotAvailable)/sizeof(WCHAR));
 169     LoadStringW(hInst, IDS_UNINSTALLFAILED, sUninstallFailed, sizeof(sUninstallFailed)/sizeof(WCHAR));
 170
 171     return DialogBoxW(hInst, MAKEINTRESOURCEW(IDD_UNINSTALLER), NULL, DlgProc);
 172 }
 173
 174
 175 /**
 176  * Used to sort entries by name.
 177  */
 178 static int cmp_by_name(const void *a, const void *b)
 179 {
 180     return lstrcmpiW(((const uninst_entry *)a)->descr, ((const uninst_entry *)b)->descr);
 181 }
 182
 183
 184 /**
 185  * Fetch informations from the uninstall key.
 186  */
 187 static int FetchUninstallInformation(void)
 188 {
 189     HKEY hkeyUninst, hkeyApp;
 190     int i;
 191     DWORD sizeOfSubKeyName, displen, uninstlen;
 192     WCHAR subKeyName[256];
 193     WCHAR key_app[1024];
 194     WCHAR *p;
 195
 196     numentries = 0;
 197     oldsel = -1;
 198     if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, PathUninstallW, 0, KEY_READ, &hkeyUninst) != ERROR_SUCCESS)
 199     {
 200         MessageBoxW(0, sRegistryKeyNotAvailable, sAppName, MB_OK);
 201         return 0;
 202     }
 203
 204     if (!entries)
 205         entries = HeapAlloc(GetProcessHeap(), 0, sizeof(uninst_entry));
 206
 207     lstrcpyW(key_app, PathUninstallW);
 208     lstrcatW(key_app, BackSlashW);
 209     p = key_app+lstrlenW(PathUninstallW)+1;
 210
 211     sizeOfSubKeyName = 255;
 212     for (i=0; RegEnumKeyExW( hkeyUninst, i, subKeyName, &sizeOfSubKeyName, NULL, NULL, NULL, NULL ) != ERROR_NO_MORE_ITEMS; ++i)
 213     {
 214         lstrcpyW(p, subKeyName);
 215         RegOpenKeyExW(HKEY_LOCAL_MACHINE, key_app, 0, KEY_READ, &hkeyApp);
 216         if ((RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, NULL, &displen) == ERROR_SUCCESS)
 217          && (RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, NULL, &uninstlen) == ERROR_SUCCESS))
 218         {
 219             numentries++;
 220             entries = HeapReAlloc(GetProcessHeap(), 0, entries, numentries*sizeof(uninst_entry));
 221             entries[numentries-1].key = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(subKeyName)+1)*sizeof(WCHAR));
 222             lstrcpyW(entries[numentries-1].key, subKeyName);
 223             entries[numentries-1].descr = HeapAlloc(GetProcessHeap(), 0, displen);
 224             RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, (LPBYTE)entries[numentries-1].descr, &displen);
 225             entries[numentries-1].command = HeapAlloc(GetProcessHeap(), 0, uninstlen);
 226             entries[numentries-1].active = 0;
 227             RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, (LPBYTE)entries[numentries-1].command, &uninstlen);
 228             WINE_TRACE("allocated entry #%d: %s (%s), %s\n",
 229             numentries, wine_dbgstr_w(entries[numentries-1].key), wine_dbgstr_w(entries[numentries-1].descr), wine_dbgstr_w(entries[numentries-1].command));
 230             if(sFilter != NULL && StrStrIW(entries[numentries-1].descr,sFilter)==NULL)
 231                 numentries--;
 232         }
 233         RegCloseKey(hkeyApp);
 234         sizeOfSubKeyName = 255;
 235     }
 236     qsort(entries, numentries, sizeof(uninst_entry), cmp_by_name);
 237     RegCloseKey(hkeyUninst);
 238     return 1;
 239 }
 240
 241
 242 static void UninstallProgram(void)
 243 {
 244     unsigned int i;
 245     WCHAR errormsg[1024];
 246     BOOL res;
 247     STARTUPINFOW si;
 248     PROCESS_INFORMATION info;
 249     DWORD exit_code;
 250     HKEY hkey;
 251     for (i=0; i < numentries; i++)
 252     {
 253         if (!(entries[i].active)) /* don't uninstall this one */
 254             continue;
 255         WINE_TRACE("uninstalling %s\n", wine_dbgstr_w(entries[i].descr));
 256         memset(&si, 0, sizeof(STARTUPINFOW));
 257         si.cb = sizeof(STARTUPINFOW);
 258         si.wShowWindow = SW_NORMAL;
 259         res = CreateProcessW(NULL, entries[i].command, NULL, NULL, FALSE, 0, NULL, NULL, &si, &info);
 260         if (res)
 261         {   /* wait for the process to exit */
 262             WaitForSingleObject(info.hProcess, INFINITE);
 263             res = GetExitCodeProcess(info.hProcess, &exit_code);
 264             WINE_TRACE("%d: %08lx\n", res, exit_code);
 265         }
 266         else
 267         {
 268             wsprintfW(errormsg, sUninstallFailed, entries[i].command);
 269             if(MessageBoxW(0, errormsg, sAppName, MB_YESNO | MB_ICONQUESTION)==IDYES)
 270             {
 271                 /* delete the application's uninstall entry */
 272                 RegOpenKeyExW(HKEY_LOCAL_MACHINE, PathUninstallW, 0, KEY_READ, &hkey);
 273                 RegDeleteKeyW(hkey, entries[i].key);
 274                 RegCloseKey(hkey);
 275             }
 276         }
 277     }
 278     WINE_TRACE("finished uninstall phase.\n");
 279     list_need_update = 1;
 280 }
 281
 282
 283 static INT_PTR CALLBACK DlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
 284 {
 285     TEXTMETRICW tm;
 286     HDC hdc;
 287     HWND hList = GetDlgItem(hwnd, IDC_LIST);
 288     switch(Message)
 289     {
 290         case WM_INITDIALOG:
 291             hdc = GetDC(hwnd);
 292             GetTextMetricsW(hdc, &tm);
 293             UpdateList(hList);
 294             ReleaseDC(hwnd, hdc);
 295             break;
 296         case WM_COMMAND:
 297             switch(LOWORD(wParam))
 298             {
 299                 case IDC_FILTER:
 300                 {
 301                     if (HIWORD(wParam) == EN_CHANGE)
 302                     {
 303                         int len = GetWindowTextLengthW(GetDlgItem(hwnd, IDC_FILTER));
 304                         list_need_update = 1;
 305                         if(len > 0)
 306                         {
 307                             sFilter = (WCHAR*)GlobalAlloc(GPTR, (len + 1)*sizeof(WCHAR));
 308                             GetDlgItemTextW(hwnd, IDC_FILTER, sFilter, len + 1);
 309                         }
 310                         else sFilter = NULL;
 311                         UpdateList(hList);
 312                     }
 313                     break;
 314                 }
 315                 case IDC_UNINSTALL:
 316                 {
 317                     int count = SendMessageW(hList, LB_GETSELCOUNT, 0, 0);
 318                     if(count != 0)
 319                     {
 320                         UninstallProgram();
 321                         UpdateList(hList);
 322                     }
 323                     break;
 324                 }
 325                 case IDC_LIST:
 326                     if (HIWORD(wParam) == LBN_SELCHANGE)
 327                     {
 328                        int sel = SendMessageW(hList, LB_GETCURSEL, 0, 0);
 329                        if (oldsel != -1)
 330                        {
 331                            entries[oldsel].active ^= 1; /* toggle */
 332                            WINE_TRACE("toggling %d old %s\n", entries[oldsel].active,
 333                            wine_dbgstr_w(entries[oldsel].descr));
 334                        }
 335                        entries[sel].active ^= 1; /* toggle */
 336                        WINE_TRACE("toggling %d %s\n", entries[sel].active,
 337                        wine_dbgstr_w(entries[oldsel].descr));
 338                        oldsel = sel;
 339                    }
 340                     break;
 341                 case IDC_ABOUT:
 342                     MessageBoxW(0, sAbout, sAboutTitle, MB_OK);
 343                     break;
 344                 case IDCANCEL:
 345                 case IDC_EXIT:
 346                     EndDialog(hwnd, 0);
 347                     break;
 348             }
 349             break;
 350         default:
 351             return FALSE;
 352     }
 353     return TRUE;
 354 }
 355
 356
 357 static void UpdateList(HWND hList)
 358 {
 359     unsigned int i;
 360     if (list_need_update)
 361     {
 362         int prevsel;
 363         prevsel = SendMessageW(hList, LB_GETCURSEL, 0, 0);
 364         if (!(FetchUninstallInformation()))
 365         {
 366             PostQuitMessage(0);
 367             return;
 368         }
 369         SendMessageW(hList, LB_RESETCONTENT, 0, 0);
 370         SendMessageW(hList, WM_SETREDRAW, FALSE, 0);
 371         for (i=0; i < numentries; i++)
 372         {
 373             WINE_TRACE("adding %s\n", wine_dbgstr_w(entries[i].descr));
 374             SendMessageW(hList, LB_ADDSTRING, 0, (LPARAM)entries[i].descr);
 375         }
 376         WINE_TRACE("setting prevsel %d\n", prevsel);
 377         if (prevsel != -1)
 378             SendMessageW(hList, LB_SETCURSEL, prevsel, 0 );
 379         SendMessageW(hList, WM_SETREDRAW, TRUE, 0);
 380         list_need_update = 0;
 381     }
 382 }